Freud 1-11/16" (Dia.) Premier Adjustable Rail & Stile Bit with 1/2" Shank (Round Over Bead) (99-763) Overall Dia. (D) 1-11/16", Large Radius 9/32", 1/2" Shank Adjust groove width to suit different panel thicknesses for rattle free plywood panels or solid wood raised panels Choose from a variety of material thicknesses (5/8 to 1-1/4") Add an optional cutter to your its to create glass panel or screen doors Add optional cutters to create double sided profiles in thicker stock material